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Piatt County, IL Weather and Climate Synopsis

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Weather Summary For Central And Southeast Illinois
National Weather Service Lincoln IL
930 AM CST Fri Dec 15 2017

Mostly cloudy skies and cool air prevailed over central and 
southeast Illinois this morning. Overnight lows ranged from 17 in
Bloomington, to 29 in Lawrenceville.

Low pressure tracking through the northern Great Lakes today, will
bring light snow as far south as northern Illinois, into northern
Indiana. Farther south, partly to mostly cloudy skies, and
seasonable temperatures are expected. Southwest winds on Saturday,
will boost temperatures well above normal. A low pressure system 
approaching from the southwest, will spread scattered rain showers
across the region, on Sunday.

High temperatures today will range from near 30 degrees in
northern Indiana, to the lower 40s in central Missouri. Lows
tonight will drop into the mid 20s to mid 30s.

National Ag. Weather Outlook, International Ag. Weather Summary
Current Surface Map, [2nd Source TWC]

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Regional Hourly Observations For PIATT County
Issued at 1000 AM CST FRI DEC 15 2017

CENTRAL ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PONTIAC        MOSUNNY   31  18  56 W23G30    30.01S WCI  18          
BLOOMINGTON    PTSUNNY   29  20  69 W18       30.04R WCI  16          
DECATUR        CLOUDY    31  21  66 NW12G21   30.06R WCI  22          
PEORIA         PTSUNNY   32  21  64 W12       30.06R WCI  23          
LACON*         CLOUDY    30  18  60 NW8       30.03R WCI  23          
LINCOLN*       PTSUNNY   33  24  69 NW9G18    30.06S WCI  25          
SPRINGFIELD    MOSUNNY   35  24  64 W14       30.08S WCI  26          
TAYLORVILLE    CLOUDY    32  24  71 NW12      30.08R WCI  23          

Current Temperatures, Dewpoint Map, RH, Wind, Regional Obs, Surface 4-Panel
Meteograms : Springfield , Peoria , Quad City , Chicago (O'Hare) , Rockford


Current Agricultural Weather Conditions in Illinois
Based on observations at 1000am CST, Friday December 15, 2017

Across Illinois...temperatures are near 28 degrees north and near 37 degrees south. Current sky conditions are partly sunny north and mostly sunny south. In the north, relative humidity is near 58%, and the dew point is near 15 degrees. In the south, relative humidity is near 56%, and the dew point is near 23 degrees. Winds are from the west at 12 mph north, where conditions are favorable for spraying. The wind chill is near 18 degrees north. Winds are unavailable central. Winds are from the west at 8 mph south, where conditions are favorable for spraying. The wind chill is near 31 degrees south. The livestock cold stress index is in the no stress category north, unavailable category central, and no stress category south. Based on current available observations, the highest temperature is 37 degrees at Mount Vernon and Marion. The lowest temperature is 28 degrees at Rockford, O'Hare Airport, and Northerly Island.


Current NOWCAST not available:
Nowcasts are not issued routinely during fair weather. Only when
precipitation or other significant weather is occuring in this county will these
forecasts be issued. Currently, there is no short term forecast in effect.

US Radar, All NWS Radars (In near-real time),Livestock Heat Stress Index (LSI), Wind Chill Map
Hazardous Weather Outlook For PIATT County,IL

605 AM CST Fri Dec 15 2017

 DAY ONE  TODAY AND TONIGHT  

No hazardous weather is expected at this time. 
 
 DAYS TWO THROUGH SEVEN  SATURDAY THROUGH THURSDAY  

No hazardous weather is expected at this time. 

 SPOTTER INFORMATION STATEMENT  

Spotter activation is not anticipated through tonight.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For PIATT County, IL
913 AM CST Fri Dec 15 2017

REST OF TODAY
Mostly cloudy. Chance of flurries late in the morning. Highs in the mid 30s. West winds 10 to 15 mph with gusts to around 25 mph.

TONIGHT
Mostly cloudy in the evening then becoming partly cloudy. Near steady temperature in the upper 20s. Southwest winds around 10 mph.

SATURDAY
Not as cool. Sunny. Highs in the upper 40s. Southwest winds 10 to 15 mph with gusts to around 25 mph.

SATURDAY NIGHT
Partly cloudy. Lows in the lower 30s. South winds 5 to 10 mph.

SUNDAY
Cloudy with a 40 percent chance of rain showers. Highs in the mid 40s. South winds 5 to 10 mph.

SUNDAY NIGHT AND MONDAY
Mostly cloudy. Lows in the upper 30s. Highs around 50.

MONDAY NIGHT
Mostly cloudy in the evening then becoming partly cloudy. A 30 percent chance of rain showers. Lows in the mid 30s.

TUESDAY AND TUESDAY NIGHT
Mostly clear. Highs in the upper 40s. Lows in the upper 20s.

WEDNESDAY AND WEDNESDAY NIGHT
Partly cloudy. Highs in the mid 40s. Lows in the lower 30s.

THURSDAY
Partly sunny. Highs in the upper 40s.

12-48 Hr Surface, 12-48 Hr ETA 500mb/Sfc, TWC Forecast, Fire Danger, Day 1 Precip, Day 2 Precip, Days 1-5 Precip
NGM 60 Hr Forecast Meteograms : Springfield , Peoria , Quad City , Chicago (O'Hare) , Rockford , Severe Weather Pot.-Day 1, Day 2


Medium & Long Range Outlook For Illinois
                             ILLINOIS                                                                     
                 ---------------------------------------------
                 6 TO 10 DAY  8 TO 14 DAY   30 DAY    90 DAY 
                   DEC 20-24    DEC 22-28    DEC       DEC-FEB                      
                 -----------  -----------  --------  ---------
   Temperature:     Normal        Below     Normal     Normal                      
 Precipitation:     Normal        Above     Normal      Above                      

....  Medium and long range outlooks provided by NCEP/K. Thomas Priddy
5 Day Rainfall Forecast, 6 to 10 Day , 8 to 14 Day , Text, 30-Day Outook, 90-Day Outook, 120-Day Outlook
MRF 10-Day Forecast Meteograms : Springfield , Peoria , Quad City , Chicago (O'Hare) , Rockford

Almanac Information

Friday December 15, 2017 the 349th Day of Year

---------------------------------------------------
SUN
Declination -23.310000
Distance 0.999725 AU
Rise 08:14 EST Set 17:35 EST
Transit Meridian 12:54 EST
Civil Twilight Begins 07:44 EST Ends 18:05 EST

Calculations made for central point in the state.
Time in ET -- and will vary due to location and
elevation -- Priddy


Historical Weather And Climate Facts For Today

DECEMBER 15TH
HISTORIC WEATHER EVENTS
...1839...
The first of triple storms hit Massachusetts Bay. The storm produced whole
gales, and more than 20 inches of snow in interior New England. There was
great loss of life at Gloucester MA. (David Ludlum)
...1901...
An intense cold front swept across the eastern U.S. The cold front produced
heavy rain in Louisiana, and heavy snow in the northeastern U.S. (David
Ludlum)
...1945...
A record December snowstorm buried Buffalo NY under 36.6 inches of snow,
with unofficial totals south of the city ranging up to 70 inches. Travel
was brought to a halt by the storm. (14th-17th) (The Weather Channel)
...1987...
A major winter storm hit the Great Lakes Region, intensifying explosively
as it crossed northern Illinois. High winds and heavy snow created blizzard
conditions in southeastern Wisconsin. Winds gusted to 73 mph, and snowfall
totals ranged up to 17 inches at LaFarge. The barometric pressure at
Chicago IL dropped three quarters of an inch in six hours to 28.96 inches,
a record low reading for December. Up to a foot of snow blanketed northern
Illinois, and winds in the Chicago area gusted to 75 mph. O'Hare Airport in
Chicago was closed for several hours, for only the fourth time in twenty
years. High winds derailed train cars at Avon IN. Light winds and partly
sunny skies were reported near the center of the storm, a feature typical
of tropical storms. (The National Weather Summary) (Storm Data)
...1988...
High pressure in the Pacific Northwest and low pressure in the southwestern
U.S. combined to produced high winds from Utah to California. Winds gusting
to 70 mph in the San Francisco area left nearly 300,000 residents without
electricity. Winds in Utah gusted to 105 mph at Centerville. (The National
Weather Summary) (Storm Data)
...1989...
A couple of low pressure systems spread heavy snow across the northeastern
U.S. Up to two feet of snow was reported along Lake Erie in northeastern
Ohio, and up to ten inches was reported in Connecticut. Heavy snow squalls
developed over Michigan for the third day in a row. Three Oaks MI reported
25 inches of snow in two days. Twenty-six cities in the north central U.S.
reported record low temperatures for the date. The low of 10 degrees below
zero at Wichita KS was a December record for that location. (The National
Weather Summary) (Storm Data)

Ag Weather Center, Department of Biosystems & Agricultural Engineering, University of Kentucky